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pig fails to use lzo as compression for temp files #115

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jefimm opened this issue May 30, 2016 · 2 comments
Open

pig fails to use lzo as compression for temp files #115

jefimm opened this issue May 30, 2016 · 2 comments

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@jefimm
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jefimm commented May 30, 2016

The following setup fails using hadoop 2.7.2 and pig 0.15.0 (Google cloud dataproc)
The same job completes fine without lzo comression for temp files and fails with lzo compression for temp files (pig.tmpfilecompression=true pig.tmpfilecompression.codec=lzo)
setup on all nodes during startup:

sudo apt-get install liblzo2-dev
sudo ln -s /lib/x86_64-linux-gnu/liblzo2.so.2 /usr/lib/hadoop/lib/native/

copied hadoop-lzo-0.4.20-SNAPSHOT.jar to /usr/lib/hadoop-mapreduce/

edited core-site.xml and added

<property> <name>io.compression.codecs</name> <value>org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.DefaultCodec,com.hadoop.compression.lzo.LzoCodec,com.hadoop.compression.lzo.LzopCodec,org.apache.hadoop.io.compress.BZip2Codec</value> </property> <property> <name>io.compression.codec.lzo.class</name> <value>com.hadoop.compression.lzo.LzoCodec</value> </property>

Error: java.lang.RuntimeException: java.io.IOException: Not a valid BCFile. at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner.init(WeightedRangePartitioner.java:155) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner.getPartition(WeightedRangePartitioner.java:75) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner.getPartition(WeightedRangePartitioner.java:58) at org.apache.hadoop.mapred.MapTask$NewOutputCollector.write(MapTask.java:715) at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89) at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:112) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Map.collect(PigGenericMapReduce.java:135) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.runPipeline(PigGenericMapBase.java:281) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:274) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:64) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by: java.io.IOException: Not a valid BCFile. at org.apache.hadoop.io.file.tfile.BCFile$Magic.readAndVerify(BCFile.java:927) at org.apache.hadoop.io.file.tfile.BCFile$Reader.(BCFile.java:628) at org.apache.hadoop.io.file.tfile.TFile$Reader.(TFile.java:804) at org.apache.pig.impl.io.TFileRecordReader.initialize(TFileRecordReader.java:64) at org.apache.pig.impl.io.ReadToEndLoader.initializeReader(ReadToEndLoader.java:212) at org.apache.pig.impl.io.ReadToEndLoader.getNextHelper(ReadToEndLoader.java:250) at org.apache.pig.impl.io.ReadToEndLoader.getNext(ReadToEndLoader.java:231) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner.init(WeightedRangePartitioner.java:129) ... 17 more

@jrottinghuis
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Is that a Pig issue, or a problem with hadoop-lzo?

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On May 30, 2016, at 10:28 AM, Jefim Matskin notifications@github.com wrote:


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@jefimm
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jefimm commented May 31, 2016

I really don't know, the problem is that enabling temp file compression with pig to be lzo does not work

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